Home / 421,260,855.58-631,919,009.67-110,376,083.98

Finding the Fourth Proportional to 421,260,855.58, 631,919,009.67 and 110,376,083.98

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Solution

The fourth proportional to 421,260,855.58, 631,919,009.67 and 110,376,083.98 is: 165,571,390.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,260,855.58 : 631,919,009.67 = 110,376,083.98 : x
  2. Step 2: Convert to fraction form
    421,260,855.58/631,919,009.67 = 110,376,083.98/x
  3. Step 3: Cross multiply
    421,260,855.58x = 631,919,009.67 × 110,376,083.98
  4. Step 4: Simplify right side
    421,260,855.58x = 69,748,745,679,894,352
  5. Step 5: Solve for x
    x = 69,748,745,679,894,352/421,260,855.58
  6. Step 6: Final answer
    x = 165,571,390.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.